A person that rides a motorcycle, particularly on a racetrack, that is able to turn in such a way, and at such a velocity, at such a low height, that their knee drags against the ground.
CaseyStoner, a professional MotoGP racer, is able to drag a knee through his turns. This is an example of a knee dragger.
People who use telemark skis in which the heel is free from the binding as opposed to downhill skiing with which the heel is locked into the binding. Thus, these types of skiers have to drag there knee on the ground to make the tight turns which come so easily to the downhill skier.
"My telemark skiis are like, wayy sicker than your alpine set-up." "Shut up, stupid kneedragger."
Someone who jumps from one relationship immediately into another one.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.